Which condition would most directly result in the production of lactic avid by some cells of the human body? A.)an excess of nitrogen in the atmosphere
B.)an insufficient amount of oxygen reaching the cells
C.)an insufficient amount of nitrogen in the atmosphere
D.)an excess of oxygen reaching the cells

4. discuss additional factors that some planets have that affect their seasons. 5. what fact about other planet’s seasons most surprised you and what did you find the most interesting? why?

Multicellular organisms use cell division, mitosis, for growth and the maintenance and repair of cells and tissues. single-celled organisms may use cell division as their method of reproduction. regardless of the reason for mitosis, the process ensures genetic continuity. what is the step in the cell cycle that ensure genetic continuity?

What is the farthest destination to date for a human spaceflight mission?